gnu: Remove GCC ICE workarounds.

* gnu/packages/patches/doxygen-gcc-ice.patch,
gnu/packages/patches/mariadb-gcc-ice.patch,
gnu/packages/patches/perf-gcc-ice.patch: Delete files
* gnu/local.mk (dist_patch_DATA): Adjust accordingly.
* gnu/packages/databases.scm (mariadb)[source](patches): Likewise.
* gnu/packages/linux.scm (perf)[source](patches): Likewise.
* gnu/packages/documentation.scm (doxygen)[inputs, arguments]: Likewise.

gnu/local.mk

@@ -641,7 +641,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/doc++-include-directives.patch		\
   %D%/packages/patches/doc++-segfault-fix.patch			\
   %D%/packages/patches/dovecot-trees-support-dovecot-2.3.patch	\
-  %D%/packages/patches/doxygen-gcc-ice.patch			\
   %D%/packages/patches/doxygen-test.patch			\
   %D%/packages/patches/dvd+rw-tools-add-include.patch 		\
   %D%/packages/patches/eigen-arm-neon-fixes.patch		\
@@ -927,7 +926,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/mailutils-uninitialized-memory.patch	\
   %D%/packages/patches/make-glibc-compat.patch			\
   %D%/packages/patches/make-impure-dirs.patch			\
-  %D%/packages/patches/mariadb-gcc-ice.patch			\
   %D%/packages/patches/mariadb-client-test-32bit.patch		\
   %D%/packages/patches/mars-install.patch			\
   %D%/packages/patches/mars-sfml-2.3.patch			\
@@ -1008,7 +1006,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/patchelf-rework-for-arm.patch		\
   %D%/packages/patches/patchutils-xfail-gendiff-tests.patch	\
   %D%/packages/patches/patch-hurd-path-max.patch		\
-  %D%/packages/patches/perf-gcc-ice.patch			\
   %D%/packages/patches/perl-autosplit-default-time.patch	\
   %D%/packages/patches/perl-dbd-mysql-CVE-2017-10788.patch	\
   %D%/packages/patches/perl-deterministic-ordering.patch	\

gnu/packages/databases.scm

@@ -636,8 +636,7 @@ Language.")
               (sha256
                (base32
                 "0k9walaglwmwdwmkq48ir17g98n83vliyyg5wck22rjgxn2xk4cy"))
-              (patches (search-patches "mariadb-gcc-ice.patch"
+              (patches (search-patches "mariadb-client-test-32bit.patch"))
-                                       "mariadb-client-test-32bit.patch"))
               (modules '((guix build utils)))
               (snippet
                '(begin

gnu/packages/documentation.scm

@@ -139,23 +139,10 @@ markup) can be customized and extended by the user.")
        ("libxml2" ,libxml2) ; provides xmllint for the tests
        ("python" ,python-2))) ; for creating the documentation
     (inputs
-     `(("bash" ,bash-minimal)
+     `(("bash" ,bash-minimal)))
-       ,@(if (string-prefix? "armhf-" (%current-system))
-             `(("gcc-ice-patch" ,@(search-patches "doxygen-gcc-ice.patch")))
-             '())))
     (arguments
      `(#:test-target "tests"
        #:phases (modify-phases %standard-phases
-                  ;; Work around an ICE that shows up on native compiles for
-                  ;; armhf-linux.
-                  ,@(if (string-prefix? "armhf-" (%current-system))
-                        `((add-after 'unpack 'apply-gcc-patch
-                            (lambda* (#:key inputs #:allow-other-keys)
-                              (let ((patch (assoc-ref inputs "gcc-ice-patch")))
-                                (invoke "patch" "-p1" "--force"
-                                        "--input" patch)))))
-                        '())
-
                   (add-before 'configure 'patch-sh
                               (lambda* (#:key inputs #:allow-other-keys)
                                 (substitute* "src/portable.cpp"

gnu/packages/linux.scm

@@ -2508,9 +2508,7 @@ in a digital read-out.")
   (package
     (name "perf")
     (version (package-version linux-libre))
-    (source (origin
+    (source (package-source linux-libre))
-              (inherit (package-source linux-libre))
-              (patches (search-patches "perf-gcc-ice.patch"))))
     (build-system gnu-build-system)
     (arguments
      '(#:phases

gnu/packages/patches/doxygen-gcc-ice.patch

@@ -1,25 +0,0 @@
-Work around this GCC ICE: <https://bugs.gnu.org/31708>.  It shows up
-only when doing native compiles on armhf-linux.
-
-Yes it's a terrible patch, but it does the job.
-
---- doxygen-1.8.13/qtools/qutfcodec.cpp	1970-01-01 01:00:00.000000000 +0100
-+++ doxygen-1.8.13/qtools/qutfcodec.cpp	2018-06-08 14:14:29.614009929 +0200
-@@ -189,7 +189,7 @@ int QUtf16Codec::heuristicContentMatch(c
- }
- 
- 
--
-+volatile const void *bomPointer = &QChar::byteOrderMark;
- 
- class QUtf16Encoder : public QTextEncoder {
-     bool headerdone;
-@@ -209,7 +209,7 @@ public:
- 	    headerdone = TRUE;
- 	    len_in_out = (1+uc.length())*(int)sizeof(QChar);
- 	    QCString d(len_in_out);
--	    memcpy(d.rawData(),&QChar::byteOrderMark,sizeof(QChar));
-+	    memcpy(d.rawData(),(void *)bomPointer,sizeof(QChar));
- 	    memcpy(d.rawData()+sizeof(QChar),uc.unicode(),uc.length()*sizeof(QChar));
- 	    return d;
- 	}

gnu/packages/patches/mariadb-gcc-ice.patch

@@ -1,24 +0,0 @@
-Work around this GCC ICE: <https://bugs.gnu.org/31708>.  It shows up
-only when doing native compiles on armhf-linux.
-
---- mariadb-10.1.33/plugin/semisync/semisync_master.cc	2018-07-28 02:13:12.604020250 +0200
-+++ mariadb-10.1.33/plugin/semisync/semisync_master.cc	2018-07-28 02:14:11.907753417 +0200
-@@ -847,6 +847,8 @@
-   return function_exit(kWho, 0);
- }
- 
-+volatile const void *kSyncHeaderPtr = &ReplSemiSyncMaster::kSyncHeader;
-+
- int ReplSemiSyncMaster::reserveSyncHeader(unsigned char *header,
- 					  unsigned long size)
- {
-@@ -873,7 +875,7 @@
-     /* Set the magic number and the sync status.  By default, no sync
-      * is required.
-      */
--    memcpy(header, kSyncHeader, sizeof(kSyncHeader));
-+    memcpy(header, (void *)kSyncHeaderPtr, sizeof(kSyncHeader));
-     hlen= sizeof(kSyncHeader);
-   }
-   return function_exit(kWho, hlen);
-

gnu/packages/patches/perf-gcc-ice.patch

@@ -1,13 +0,0 @@
-Work around this GCC ICE: <https://bugs.gnu.org/31708>.
-
---- linux-4.16.13/tools/perf/util/header.c	2018-06-04 11:30:39.368146035 +0200
-+++ linux-4.16.13/tools/perf/util/header.c	2018-06-04 11:34:04.667212378 +0200
-@@ -135,7 +135,7 @@ int do_write(struct feat_fd *ff, const v
- int write_padded(struct feat_fd *ff, const void *bf,
- 		 size_t count, size_t count_aligned)
- {
--	static const char zero_buf[NAME_ALIGN];
-+	static const char zero_buf[NAME_ALIGN] = { 0 };
- 	int err = do_write(ff, bf, count);
- 
- 	if (!err)